STC15W4 系列单片机串口3和串口4

只看该作者 · 2016-4-8 08:58

现在想用STC15W4K系列单片机的串口3和串口4通讯，串口2和串口1通讯没问题，但是串口3和串口4不能收发数据

这是串口3的程序能给我说说是不是还有什么配置没有写出来或者没写对啊

#include "STC15.h"
#define uchar unsigned char
#define uint unsigned int
#define FOSC 11059200
#define BAUD 9600

#define S3RI 0x01
#define S3TI 0x02

#define TM (65536-(FOSC/4/BAUD))
uchar flag,num;
void INIT(void)
{
//TMOD=0x10;
P_SW2&=0x00;
S3CON=0x10;
T2L=TM;
T2H=TM>>8;
AUXR=0x14;
IE2=0x08;
EA=1;
}

void main(void)
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
P6M0 = 0x00;
P6M1 = 0x00;
P7M0 = 0x00;
P7M1 = 0x00;
INIT();
while(1)
{
if(flag==1)
{
flag=0;
IE2=0x00;
S3BUF=num;
while((S3CON&S3TI)==0);
S3CON&=~S3TI;
IE2=0x08;
}
}
}

void UART() interrupt 14
{
if((S3CON & S3RI) != 0x00)
S3CON&=~S3RI;
num=S3BUF;
flag=1;
}

1万 · 2016-4-8 10:58

有没有试过官方例程

2万 · 2016-4-8 12:43

STC官方实验箱4的例程里有4个串口同时中断方式收发的例程。
http://www.****ducst/STC-Study/S ... -SCH-C-ASM-VER2.RAR

只看该作者 · 2017-11-10 17:46

你程序里中断序号错了，应该是17

只看该作者 · 2017-11-10 17:47

我的程序只能发不能收，不知道哪位大侠能给看看。
/*---------------------------------------------------------------------*/
/* --- STC MCU Limited ------------------------------------------------*/
/* --- STC15F4K60S4 ÏµÁÐ ¶¨Ê±Æ÷3ÓÃ×÷´®¿Ú3µÄ²¨ÌØÂÊ·¢ÉúÆ÷¾ÙÀý------------*/
/* --- Mobile: (86)13922805190 ----------------------------------------*/
/* --- Fax: 86-0513-55012956,55012947,55012969 ------------------------*/
/* --- Tel: 86-0513-55012928,55012929,55012966-------------------------*/

/* Èç¹ûÒªÔÚ³ÌÐòÖÐÊ¹ÓÃ´Ë´úÂë,ÇëÔÚ³ÌÐòÖÐ×¢Ã÷Ê¹ÓÃÁËSTCµÄ×ÊÁÏ¼°³ÌÐò       */
/* Èç¹ûÒªÔÚÎÄÕÂÖÐÓ¦ÓÃ´Ë´úÂë,ÇëÔÚÎÄÕÂÖÐ×¢Ã÷Ê¹ÓÃÁËSTCµÄ×ÊÁÏ¼°³ÌÐò       */
/*---------------------------------------------------------------------*/

//±¾Ê¾ÀýÔÚKeil¿ª·¢»·¾³ÏÂÇëÑ¡ÔñIntelµÄ8058Ð¾Æ¬ÐÍºÅ½øÐÐ±àÒë
//ÈôÎÞÌØ±ðËµÃ÷,¹¤×÷ÆµÂÊÒ»°ãÎª11.0592MHz

#include "reg51.h"
#include "intrins.h"
sbit LED=P1^1;
typedef unsigned char BYTE;
typedef unsigned int WORD;

#define FOSC 11059200L       //ÏµÍ³ÆµÂÊ
#define BAUD 9600          //´®¿Ú²¨ÌØÂÊ

#define NONE_PARITY    0    //ÎÞÐ£Ñé
#define ODD_PARITY    1    //ÆæÐ£Ñé
#define EVEN_PARITY    2    //Å¼Ð£Ñé
#define MARK_PARITY    3    //±ê¼ÇÐ£Ñé
#define SPACE_PARITY 4    //¿Õ°×Ð£Ñé

#define PARITYBIT NONE_PARITY //¶¨ÒåÐ£ÑéÎ»

sfr P0M1 = 0x93;
sfr P0M0 = 0x94;
sfr P1M1 = 0x91;
sfr P1M0 = 0x92;
sfr P2M1 = 0x95;
sfr P2M0 = 0x96;
sfr P3M1 = 0xb1;
sfr P3M0 = 0xb2;
sfr P4M1 = 0xb3;
sfr P4M0 = 0xb4;
sfr P5M1 = 0xC9;
sfr P5M0 = 0xCA;
sfr P6M1 = 0xCB;
sfr P6M0 = 0xCC;
sfr P7M1 = 0xE1;
sfr P7M0 = 0xE2;

sfr S3CON = 0xac;             //UART3 ¿ØÖÆ¼Ä´æÆ÷
sfr S3BUF = 0xad;             //UART3 Êý¾Ý¼Ä´æÆ÷

sfr IE2    = 0xAF;          //ÖÐ¶ÏÊ¹ÄÜ¼Ä´æÆ÷2
sfr T4T3M = 0xD1;          //¶¨Ê±Æ÷3ºÍ¶¨Ê±Æ÷4¿ØÖÆ¼Ä´æÆ÷
sfr T4H    = 0xD2;          //¶¨Ê±Æ÷4¸ß8Î»
sfr T4L    = 0xD3;          //¶¨Ê±Æ÷4µÍ8Î»
sfr T3H    = 0xD4;          //¶¨Ê±Æ÷3¸ß8Î»
sfr T3L    = 0xD5;          //¶¨Ê±Æ÷3µÍ8Î»

#define S3RI  0x01             //S3CON.0
#define S3TI  0x02             //S3CON.1
#define S3RB8 0x04             //S3CON.2
#define S3TB8 0x08             //S3CON.3

sfr P_SW2 = 0xBA;          //ÍâÉè¹¦ÄÜÇÐ»»¼Ä´æÆ÷2
#define S3_S0 0x02             //P_SW2.1

bit busy;

void SendData(BYTE dat);
void SendString(char *s);

void main()
{
P0M0 = 0x00;
P0M1 = 0x00;
P1M0 = 0x00;
P1M1 = 0x00;
P2M0 = 0x00;
P2M1 = 0x00;
P3M0 = 0x00;
P3M1 = 0x00;
P4M0 = 0x00;
P4M1 = 0x00;
P5M0 = 0x00;
P5M1 = 0x00;
P6M0 = 0x00;
P6M1 = 0x00;
P7M0 = 0x00;
P7M1 = 0x00;

P_SW2 &= ~S3_S0;          //S3_S0=0 (P0.0/RxD3, P0.1/TxD3)
//  P_SW2 |= S3_S0;          //S3_S0=1 (P5.0/RxD3_2, P5.1/TxD3_2)

#if (PARITYBIT == NONE_PARITY)
S3CON = 0x50;             //8Î»¿É±ä²¨ÌØÂÊ
#elif (PARITYBIT == ODD_PARITY) || (PARITYBIT == EVEN_PARITY) || (PARITYBIT == MARK_PARITY)
S3CON = 0xda;             //9Î»¿É±ä²¨ÌØÂÊ,Ð£ÑéÎ»³õÊ¼Îª1
#elif (PARITYBIT == SPACE_PARITY)
S3CON = 0xd2;             //9Î»¿É±ä²¨ÌØÂÊ,Ð£ÑéÎ»³õÊ¼Îª0
#endif

T3L = (65536 - (FOSC/4/BAUD)); //ÉèÖÃ²¨ÌØÂÊÖØ×°Öµ
T3H = (65536 - (FOSC/4/BAUD))>>8;
T4T3M |= 0x02;             //¶¨Ê±Æ÷3Îª1TÄ£Ê½
T4T3M |= 0x08;             //¶¨Ê±Æ÷3¿ªÊ¼¼ÆÊ±
IE2 = 0x08;                //Ê¹ÄÜ´®¿Ú3ÖÐ¶Ï
EA = 1;

SendString("STC15F4K60S4\r\nUart3 Test !\r\n");
while(1);
}

/*----------------------------
UART3 ÖÐ¶Ï·þÎñ³ÌÐò
-----------------------------*/
void Uart3() interrupt 17 using 0
{
if (S3CON & S3RI)
{
      S3CON &= ~S3RI;       //Çå³ýS3RIÎ»
      P0 = S3BUF;          //P0ÏÔÊ¾´®¿ÚÊý¾Ý
      P2 = (S3CON & S3RB8); //P2.2ÏÔÊ¾Ð£ÑéÎ»

只看该作者 · 2017-11-10 18:14

可以收发了，发现是硬件的原因。

STC15W4 系列单片机 串口3和串口4

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STC15W4 系列单片机串口3和串口4